Gtk3: Fix tab border color and --secondary-ui-md colors

chrome/browser/ui/libgtkui/gtk_ui.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_LIBGTKUI_GTK_UI_H_
 #define CHROME_BROWSER_UI_LIBGTKUI_GTK_UI_H_
 
 #include <map>
 #include <memory>
 #include <vector>
@@ skipping 104 matching lines @@
   // thumb part and of the track colors.
   void SetScrollbarColors();
 
   // Extracts colors and tints from the GTK theme, both for the
   // ThemeService interface and the colors we send to webkit.
   void LoadGtkValues();
 
   // Sets the Xcursor theme and size with the GTK theme and size.
   void UpdateCursorTheme();
 
-  // Reads in explicit theme frame colors from the ChromeGtkFrame style class
-  // or generates them per our fallback algorithm.
-  void BuildFrameColors();
-
   // Updates |default_font_*|.
   void UpdateDefaultFont();
 
   // Gets a ChromeGtkFrame theme color; returns true on success.  No-op on gtk3.
   bool GetChromeStyleColor(const char* sytle_property,
                            SkColor* ret_color) const;
 
   ui::NativeTheme* native_theme_;
 
   // A GtkWindow object with the class "ChromeGtkFrame".
@@ skipping 55 matching lines @@
 }  // namespace libgtkui
 
 // Access point to the GTK2 desktop system. This should be the only symbol that
 // is exported in the library; everything else should be used through the
 // interface, because eventually this .so will be loaded through dlopen at
 // runtime so our main binary can conditionally load GTK2 or GTK3 or EFL or
 // QT or whatever.
 LIBGTKUI_EXPORT views::LinuxUI* BuildGtkUi();
 
 #endif  // CHROME_BROWSER_UI_LIBGTKUI_GTK_UI_H_